[libgdata] docs: Add the “demos” commit message tag

[Philip Withnall <pwithnall src gnome org>]

commit a1606384f5f9db5b5a324539739818b6d0984b81
Author: Philip Withnall <philip tecnocode co uk>
Date:   Sun Jan 16 16:29:44 2011 +0000

    docs: Add the âdemosâ commit message tag

 HACKING |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/HACKING b/HACKING
index 9d9f699..10507a5 100644
--- a/HACKING
+++ b/HACKING
@@ -164,6 +164,8 @@ the following format "tag: Short explanation". The following tags are valid:
 
  - tests: for changes to the test code in gdata/tests which are not specific to a service or namespace.
 
+ - demos: for changes to the demo applications in the demos directory.
+
  - introspection: for introspection annotations and build changes.
 
  - calendar: for the Google Calendar code in gdata/services/calendar.